Quote:
Originally Posted by Joe_Lorenz
Yes, salt water corrosion is a problem less to "voice pipes".
I was told by a retired sailor - most seriously - they would have to use wooden "plugs" to prevent rodents to enter these pipes and thus disturbing communication. I cannot judge if this is/was true or sailor's yarn!
Regards, Joe
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I was told many years ago that they had a whistle stuck in them so that you blew down the pipe to make it work like a ringer. The rats would never get in unless the whistle got pinched.